Tax deadlines
Federal and California dates, adjusted for weekends and holidays.
Just passedS-corp and partnership extension filing deadline ยท Third quarter estimated payment
Next
11 days left
Estate and trust extension filing deadline
Form 1041
Filing
2026
| Date | What is due | Applies to |
|---|---|---|
| Individual extension filing deadlineForm 1040 | Filing | |
| Third quarter payroll filingForm 941 | Payroll |
2027
| Date | What is due | Applies to |
|---|---|---|
| Fourth quarter estimated paymentFor tax year 2026 | Tax payments | |
| W-2 and 1099-NEC filingWage and contractor forms for 2026 | Filing | |
| Fourth quarter payroll filingForm 941, for 2026 | Payroll | |
| S-corp and partnership filingForms 1120S and 1065 | Filing | |
| Individual, trust, and corporate filingForms 1040, 1041, and 1120 | Filing | |
| Income tax paymentFor tax year 2026 | Tax payments | |
| First quarter estimated paymentFor tax year 2027 | Tax payments | |
| California LLC filingForm 568 | California | |
| First quarter payroll filingForm 941 | Payroll | |
| Second quarter estimated paymentFor tax year 2027 | Tax payments | |
| Second quarter payroll filingForm 941 | Payroll | |
| S-corp and partnership extension filing deadlineForms 1120S and 1065 | Filing | |
| Third quarter estimated paymentFor tax year 2027 | Tax payments | |
| Estate and trust extension filing deadlineForm 1041 | Filing | |
| Individual extension filing deadlineForm 1040 | Filing | |
| Third quarter payroll filingForm 941 | Payroll |
An extension gives you more time to file, not more time to pay. What you owe for the year is still due in April.
Dates assume a December 31 year end. If your business uses a fiscal year, yours shift with it.
California
California follows the federal calendar almost everywhere. Three differences:
- Form 568 is due April 15, a month after the federal partnership return.
- The extension is automatic, but it does not postpone the payment.
- The $800 annual LLC tax is due in April of the year you are operating in, not with the return.
Dates can also be postponed for disaster relief, which California sees more often than most states. Those are announced case by case and are not shown above.
General information for planning, not advice about your situation.